Neuroscience
Neuron
100%
δ -Opioid Receptor
70%
Spinal Cord
49%
Serotonin
34%
Serotonergic
34%
Opioid
33%
Substance P
23%
Brain
20%
Endomorphin 2
20%
Rostral Ventromedial Medulla
20%
Estrogen Receptor
17%
Axon
15%
Brainstem
15%
Thyrotropin-Releasing Hormone
14%
Central Nervous System
12%
Gamma-Aminobutyric Acid
12%
Estrogens
12%
Antiserum
11%
Peptide
11%
Dynorphin
11%
Medulla
11%
Nerve Fiber
10%
Eicosanoid Receptor
10%
GABA Receptor
9%
Locus Coeruleus
9%
Enkephalin
8%
Innervation
8%
Periaqueductal Gray
8%
Neuropathic Pain
8%
Kappa Opiate Receptor
7%
Κ-opioid receptor
7%
μ-Opioid Receptor
7%
Mu Opiate Receptor
7%
Staining Technique
6%
Tract Tracing
6%
Aromatase
6%
Immunofluorescence
6%
G Protein
6%
Tyrosine Hydroxylase
5%
Endorphin
5%
Acetate
5%
Dorsal Root Ganglion
5%
Fluorescein
5%
Somatic
5%
Fluorescence
5%
Nucleus Raphe Magnus
5%
In Situ Hybridization
5%
Sex Hormone
5%
Medicine and Dentistry
Opiate
20%
κ-Opioid Receptor
17%
Antinociception
16%
Cells
12%
Neuron
11%
Dynorphin
10%
Medulla
9%
Female
9%
Serotonin
9%
Brainstem
9%
Endorphin
8%
Estrogen Receptor
8%
Endomorphin 2
8%
Varices
6%
Pain
6%
Substance P
6%
Immunocytochemistry
5%
Tissues
5%
Glia
5%
Endomorphin
5%
Ventral Tegmental Area
5%
Brain
5%
Anodyne
5%
Sex Hormone
5%
Biochemistry, Genetics and Molecular Biology
Rat
18%
Opioid Receptor
10%
Immunofluorescence
9%
Peptide
8%
Neurotransmitter
8%
Acetic Acid
8%
Rhodamine
5%
Fluorescein
5%
Microscopy
5%
Messenger RNA
5%
Precursor
5%